In street photography, there is quite a complex creative process going on inside my head before I capture the image. But some people may still think that street photography is all about lucky snapshots.

Admittedly, a bit of luck does play a role in street photography because we rely on interesting subjects that are around in the same place and at the same time where we are. And this coincidental factor has kept me going in street photography for the past 25 years - and it has never been boring for me.

But the most important factors that I would attribute to my best street photos are based on exploring a scene and narrowing down the options of a place and the timing. Once you have reached this clear focus and pre-visualization of your image, you are on your way to capture the decisive moment that tells a story in your images.

My friend Steve Brazill invited me to his “Behind the Shot Podcast” and allowed me to take you along the creation process of one of my most famous street images. I share the decisions that I have made before the shot that lead me to narrow down to the final location, timing, and the story that I saw in front of me.

On every intercity express train ride that I take, I capture images through the window. While the world flies by at up to 300 km/h (186 mph), very few people even take the time to look at the unique and quickly changing scenery.

On a recent train ride from the north to the center of Germany, I captured this series of images - another set of my "Train Window Diaries at 1/1000s".

At this shutter speed, not only the far but even the close objects are frozen in time and can be recognized - which is almost impossible for the human eye to capture at these speeds.

Take a look at the beauty that is often overlooked by most passengers. The varying scenery, weather conditions and snow levels are a good indicator of the distance traveled and the regional changes that come with it.